World's Best Scientists 2026 revealed!

D-Index & Metrics

Animal Science and Veterinary

D-Index
41
Citations
4670
World Ranking
1125
National Ranking
333

John Killefer publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where John Killefer sits on this spectrum.

29–33 publications: 1 scientists 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29 publications 442+

This scientist: 108 publications — 32nd percentile

32% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

John Killefer D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where John Killefer sits on this spectrum.

20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 41 D-Index — 67th percentile

67% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

Overview

John Killefer is affiliated with South Dakota State University in the United States. Their academic work is associated with this institution, indicating an involvement in research and teaching activities within this university's environment.

There are no records of recent papers, co-authors, publication venues, or specific fields and subfields of study linked to John Killefer in the provided data. Likewise, there is no information available on book publications or awards received by this researcher.

Without data on publications or research topics, it is not possible to detail the scientific focus areas or thematic concentrations of their work. The absence of listed papers and documented collaborations suggests either limited public documentation or a specialization in areas outside the indexed reach of this dataset.

The profile reflects the available factual data without assumptions about their research interests or academic contributions beyond their primary affiliation.

Best Publications

  • Thirty-five polymorphic microsatellite markers for rainbow trout (Oncorhynchus mykiss).

    C. E. Rexroad;R. L. Coleman;A. M. Martin;W. K. Hershberger

  • Effects of different cereal grains and ractopamine hydrochloride on performance, carcass characteristics, and fat quality in late-finishing pigs

    S. N. Carr;P. J. Rincker;J. Killefer;D. H. Baker

  • Effect of antioxidant inclusion and oil quality on broiler performance, meat quality, and lipid oxidation

    M.A. Tavárez;D.D. Boler;K.N. Bess;J. Zhao

  • Effect of Distillers Dried Grains With Solubles and Ractopamine (Paylean) on Quality and Shelf-Life of Fresh Pork and Bacon

    C. M. Leick;C. L. Puls;M. Ellis;J. Killefer

  • The effects of high pressure processing on pork quality, palatability, and further processed products

    C.M. Souza;D.D. Boler;D.L. Clark;L.W. Kutzler

  • The effects of ractopamine hydrochloride on lean carcass yields and pork quality characteristics.

    S. N. Carr;D. J. Ivers;D. B. Anderson;D. J. Jones

  • Bovine skeletal muscle calpastatin: cloning, sequence analysis, and steady-state mRNA expression.

    John Killefer;Mohammad Koohmaraie

  • Comparative effects of ractopamine hydrochloride and zilpaterol hydrochloride on growth performance, carcass traits, and longissimus tenderness of finishing steers.

    S. M. Scramlin;W. J. Platter;R. A. Gomez;W. T. Choat

  • Intramuscular fat content has little influence on the eating quality of fresh pork loin chops.

    P. J. Rincker;J. Killefer;M. Ellis;M. S. Brewer

  • Identification and molecular characterization of the rainbow trout calpains (Capn1 and Capn2): their expression in muscle wasting during starvation

    Mohamed Salem;Joginder Nath;Caird E. Rexroad;John Killefer

  • Development of Rainbow Trout Microsatellite Markers from Repeat Enriched Libraries

    C.E. Rexroad;R.L. Coleman;A.L. Gustafson;W.K. Hershberger

  • The effect of pH on shelf-life of pork during aging and simulated retail display

    S. F. Holmer;R. O. McKeith;Dustin Dee Boler;Anna Carol Dilger

  • Effects of oxidized corn oil and a synthetic antioxidant blend on performance, oxidative status of tissues, and fresh meat quality in finishing barrows.

    D. D. Boler;D. M. Fernández-Dueñas;L. W. Kutzler;J. Zhao

  • Effects of increasing lysine on carcass composition and cutting yields of immunologically castrated male pigs

    D. D. Boler;L. W. Kutzler;D. M. Meeuwse;V. L. King

  • Temporal expression of growth factor genes during myogenesis of satellite cells derived from the biceps femoris and pectoralis major muscles of the chicken.

    Hakan Kocamis;Douglas C. McFarland;John Killefer

  • Effect of ractopamine hydrochloride (Optaflexx) dose on live animal performance, carcass characteristics and tenderness in early weaned beef steers.

    D.D. Boler;A.L. Shreck;A.L. Shreck;D.B. Faulkner;J. Killefer;J. Killefer

  • Prion biology relevant to bovine spongiform encephalopathy

    J. Novakofski;M. S. Brewer;N. Mateus-Pinilla;J. Killefer

  • Effects of multiple concurrent stressors on rectal temperature, blood acid-base status, and longissimus muscle glycolytic potential in market-weight pigs.

    M. J. Ritter;M. Ellis;D. B. Anderson;S. E. Curtis

  • ULTIMATE pH EXPLAINS VARIATION IN PORK QUALITY TRAITS

    Dustin Dee Boler;Anna Carol Dilger;B. S. Bidner;S. N. Carr

  • The effect of ractopamine hydrochloride (Paylean®) on lean carcass yields and pork quality characteristics of heavy pigs fed normal and amino acid fortified diets.

    S. N. Carr;D. N. Hamilton;K. D. Miller;A. L. Schroeder

  • Effects of immunological castration (Improvest) on changes in dressing percentage and carcass characteristics of finishing pigs

    D. D. Boler;C. L. Puls;D. L. Clark;M. Ellis

  • Carcass, meat quality, and sensory characteristics of heavy body weight pigs fed ractopamine hydrochloride (Paylean)

    D. M. Fernández-Dueñas;A. J. Myers;S. M. Scramlin;C. W. Parks

  • In ovo administration of recombinant human insulin-like growth factor-I alters postnatal growth and development of the broiler chicken.

    H Kocamis;D C Kirkpatrick-Keller;H Klandorf;J Killefer

  • Effects of slaughter time post-second injection on carcass cutting yields and bacon characteristics of immunologically castrated male pigs.

    D. D. Boler;J. Killefer;D. M. Meeuwse;V. L. King

Frequent Co-Authors

Floyd K. Mckeith
Floyd K. Mckeith University of Illinois at Urbana-Champaign
Michael Ellis
Michael Ellis University of Illinois at Urbana-Champaign
W. T. Nichols
W. T. Nichols MSD (United States)
D. A. Yates
D. A. Yates University of Nebraska–Lincoln
J.C. Brooks
J.C. Brooks Texas Tech University
Melvin C. Hunt
Melvin C. Hunt Kansas State University
Michael E. Dikeman
Michael E. Dikeman Kansas State University
Caird E. Rexroad
Caird E. Rexroad Agricultural Research Service
Jianbo Yao
Jianbo Yao West Virginia University
J. W. Savell
J. W. Savell Texas A&M University

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Related Online Degrees & Career Pathways

For those interested in expanding their expertise beyond Animal Science and Veterinary studies, several related online degrees offer exciting career opportunities. Pursuing an online doctorate in counseling can be a valuable option for professionals seeking to support animal owners and communities through therapeutic services.

If your passion lies in working directly with animals, exploring careers with animals that pay well is essential. These paths often require specialized knowledge and can lead to rewarding jobs in wildlife management, zoology, or veterinary technology.

Additionally, animal science graduates may consider leadership roles in education and athletics. Learning how to become a high school athletic director can open doors to managing sports programs, where expertise in exercise and animal physiology may be surprisingly relevant.

For those keen on the fitness and health aspect, online exercise science programs provide flexible options to deepen knowledge in biomechanics and physical health, complementing careers related to animal rehabilitation and performance.

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